HARRISON TOWNSHIP (WWJ) – Michigan State Police were called to Selfridge Air National Guard Base overnight after a man walked up to security officers and said he had a gun.

Military police had disarmed the man by the time state police arrived, at around 8:30 p.m. Monday. A .32 caliber 5-shot revolver was recovered and turned over the state police.

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No one was hurt.

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Police said the suspect, who was taken into custody, may have a mental disorder.  His name has not been released.

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A state police investigation is ongoing.